Enter campus from Lincoln Blvd (near the big fountain) and then University Hall is the big building immediately on the right. Parking is available in P2/P3 (which will be free), which is one of the first driveways on the right after entering campus.

After parking, take the elevators up to the ground floor, then take escalators up one flight to the second floor. The mathematics department is in Suite 2700. Signs will be posted for how to find the registration tables. A campus map (somewhat unnecessary) is available here.